1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Given :
(i)   Cu2+ + 2e$$-$$ $$ \to $$ Cu,  Eo = 0.337 V
(ii)  Cu2+ + e$$-$$ $$ \to $$ Cu+,  Eo = 0.153 V
Electrode potential, Eo for the reaction,
Cu+ + e$$-$$ $$ \to $$ Cu,  will be
A
0.90 V
B
0.30 V
C
0.38 V
D
0.52 V
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The equivalent conductance of M/32 solution of a weak monobasic acid is 8.0 mho cm2 and at infinite dilution is 400 mho cm2. The dissociation constant of this acid is
A
1.25 $$ \times $$ 10$$-$$6
B
6.25 $$ \times $$ 10$$-$$4
C
1.25 $$ \times $$ 10$$-$$4
D
1.25 $$ \times $$ 10$$-$$5
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Al2O3 is reduced by electrolysis at low potentials and high currents. If 4.0 $$ \times $$ 104 amperes of current is passed through molten Al2O3 for 6 hours, what mass of aluminium is product? (Assume 100% current efficiency, at mass of Al = 27 g mol$$-$$1).
A
8.1 $$ \times $$ 104 g
B
2.4 $$ \times $$ 105 g
C
1.3 $$ \times $$ 104 g
D
9.0 $$ \times $$ 103 g
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
For the reaction, N2 + 3H2 $$ \to $$ 2NH3, if
$${{d\left[ {N{H_3}} \right]} \over {dt}}$$ = 2 $$ \times $$ 10$$-$$4 mol L$$-$$1 s$$-$$1,
the value of $${{ - d\left[ {{H_2}} \right]} \over {dt}}$$ would be
A
4 $$ \times $$ 10$$-$$4 mol L$$-$$1 s$$-$$1
B
6 $$ \times $$ 10$$-$$4 mol L$$-$$1 s$$-$$1
C
1 $$ \times $$ 10$$-$$4 mol L$$-$$1 s$$-$$1
D
3 $$ \times $$ 10$$-$$4 mol L$$-$$1 s$$-$$1
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